Remove JS dialog dependency from content.

chrome/browser/ui/app_modal_dialogs/js_modal_dialog.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_UI_APP_MODAL_DIALOGS_JS_MODAL_DIALOG_H_
 #define CHROME_BROWSER_UI_APP_MODAL_DIALOGS_JS_MODAL_DIALOG_H_
 #pragma once
 
 #include <string>
 
-#include "base/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/ui/app_modal_dialogs/app_modal_dialog.h"
+#include "content/browser/javascript_dialog_delegate.h"
 #include "content/common/notification_observer.h"
 #include "content/common/notification_registrar.h"
-#include "ui/gfx/native_widget_types.h"
 
 class ExtensionHost;
 class NativeAppModalDialog;
 class TabContents;
 
 namespace IPC {
 class Message;
 }
 
-class JavaScriptAppModalDialogDelegate {
+// The callback interface for JavaScript dialogs. Extends the content/ version
+// to add Chrome-only features.
+class ChromeJavaScriptDialogDelegate
+    : public content::JavaScriptDialogDelegate {
  public:
-  // AppModalDialog calls this when the dialog is closed.
-  virtual void OnMessageBoxClosed(IPC::Message* reply_msg,
-                                  bool success,
-                                  const std::wstring& prompt) = 0;
-
-  // Indicates whether additional message boxes should be suppressed.
-  virtual void SetSuppressMessageBoxes(bool suppress_message_boxes) = 0;
-
-  // Returns the root native window with which the message box is associated.
-  virtual gfx::NativeWindow GetMessageBoxRootWindow() = 0;
-
-  // Returns the TabContents or ExtensionHost associated with this message
-  // box -- in practice, the object implementing this interface. Exactly one
-  // of these must be non-NULL; behavior is undefined (read: it'll probably
-  // crash) if that is not the case.
-  virtual TabContents* AsTabContents() = 0;
-  virtual ExtensionHost* AsExtensionHost() = 0;
-
- protected:
-  virtual ~JavaScriptAppModalDialogDelegate() {}
+  // Indicates whether additional dialogs should be suppressed.
+  virtual void SetSuppressDialogs(bool suppress_dialogs) = 0;
 };
 
 // A controller + model class for JavaScript alert, confirm, prompt, and
 // onbeforeunload dialog boxes.
 class JavaScriptAppModalDialog : public AppModalDialog,
                                  public NotificationObserver {
  public:
-  JavaScriptAppModalDialog(JavaScriptAppModalDialogDelegate* delegate,
-                           const std::wstring& title,
+  JavaScriptAppModalDialog(ChromeJavaScriptDialogDelegate* delegate,
+                           const string16& title,
                            int dialog_flags,
-                           const std::wstring& message_text,
-                           const std::wstring& default_prompt_text,
+                           const string16& message_text,
+                           const string16& default_prompt_text,
                            bool display_suppress_checkbox,
                            bool is_before_unload_dialog,
                            IPC::Message* reply_msg);
   virtual ~JavaScriptAppModalDialog();
 
   // Overridden from AppModalDialog:
   virtual NativeAppModalDialog* CreateNativeDialog();
   virtual bool IsJavaScriptModalDialog();
 
-  JavaScriptAppModalDialogDelegate* delegate() const { return delegate_; }
+  ChromeJavaScriptDialogDelegate* delegate() const { return delegate_; }
 
   // Callbacks from NativeDialog when the user accepts or cancels the dialog.
   void OnCancel(bool suppress_js_messages);
-  void OnAccept(const std::wstring& prompt_text, bool suppress_js_messages);
+  void OnAccept(const string16& prompt_text, bool suppress_js_messages);
 
   // NOTE: This is only called under Views, and should be removed. Any critical
   // work should be done in OnCancel or OnAccept. See crbug.com/63732 for more.
   void OnClose();
 
   // Used only for testing. The dialog will use the given text when notifying
   // its delegate instead of whatever the UI reports.
   void SetOverridePromptText(const string16& prompt_text);
 
   // Accessors
   int dialog_flags() const { return dialog_flags_; }
-  std::wstring message_text() const { return message_text_; }
-  std::wstring default_prompt_text() const {
-    return UTF16ToWideHack(default_prompt_text_);
-  }
+  string16 message_text() const { return message_text_; }
+  string16 default_prompt_text() const { return default_prompt_text_; }
   bool display_suppress_checkbox() const { return display_suppress_checkbox_; }
   bool is_before_unload_dialog() const { return is_before_unload_dialog_; }
 
  private:
   // Overridden from NotificationObserver:
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
   // Initializes for notifications to listen.
   void InitNotifications();
 
   // Notifies the delegate with the result of the dialog.
-  void NotifyDelegate(bool success, const std::wstring& prompt_text,
+  void NotifyDelegate(bool success, const string16& prompt_text,
                       bool suppress_js_messages);
 
   NotificationRegistrar registrar_;
 
   // An implementation of the client interface to provide supporting methods
   // and receive results.
-  JavaScriptAppModalDialogDelegate* delegate_;
+  ChromeJavaScriptDialogDelegate* delegate_;
 
   // The client_ as an ExtensionHost, cached for use during notifications that
   // may arrive after the client has entered its destructor (and is thus
   // treated as a base Delegate). This will be NULL if the |delegate_| is not an
   // ExtensionHost.
   ExtensionHost* extension_host_;
 
   // Information about the message box is held in the following variables.
   int dialog_flags_;
-  std::wstring message_text_;
+  string16 message_text_;
   string16 default_prompt_text_;
   bool display_suppress_checkbox_;
   bool is_before_unload_dialog_;
   IPC::Message* reply_msg_;
 
   // Used only for testing. Specifies alternative prompt text that should be
   // used when notifying the delegate, if |use_override_prompt_text_| is true.
   string16 override_prompt_text_;
   bool use_override_prompt_text_;
 
   DISALLOW_COPY_AND_ASSIGN(JavaScriptAppModalDialog);
 };
 
 #endif  // CHROME_BROWSER_UI_APP_MODAL_DIALOGS_JS_MODAL_DIALOG_H_